<div    ng-controller="DuoXuanTiCtrl" class="AnswerRoll">
<p  class="lead theme"> <a href="#">{{item.id}}.</a>{{item.Content}}</p>
<div>
    <div class="custom-control custom-checkbox">
        <input type="checkbox"  id="py_Answer_A" name="py" class="custom-control-input" >
        <label class="custom-control-label" for="py_Answer_A">A  {{item.Answer_A}}</label>
    </div>
</div>
<div>
    <div class="custom-control custom-checkbox">
        <input type="checkbox" id="py_Answer_B" name="py" class="custom-control-input" >
        <label class="custom-control-label" for="py_Answer_B">B  {{item.Answer_B}}</label>
    </div>
</div>
<div>
    <div class="custom-control custom-checkbox">
        <input type="checkbox" id="py_Answer_C" name="py" class="custom-control-input" >
        <label class="custom-control-label" for="py_Answer_C">C  {{item.Answer_C}}</label>
    </div>
</div>
<div>
    <div class="custom-control custom-checkbox">
        <input type="checkbox" id="py_Answer_D" name="py" class="custom-control-input" >
        <label class="custom-control-label" for="py_Answer_D">D  {{item.Answer_D}}</label>
    </div>
    <div class="btn btn-success" ng-click="SetAnswer('All')">答题</div>
</div>
    <div class="{{item.ShowAnswer}}">

        <p  >正确答案:</p>
        <p>
            <span>(</span>
            <span ng-if="item.Correct.indexOf('Answer_A')>-1">A</span>

            <span ng-if="item.Correct.indexOf('Answer_B')>-1">B</span>

            <span ng-if="item.Correct.indexOf('Answer_C')>-1">C</span>

            <span ng-if="item.Correct.indexOf('Answer_D')>-1">D</span>
            <span>)</span>
        </p>
        <p ng-if="item.Correct.indexOf('Answer_A')>-1">
            {{item.Answer_A}}
        </p>

        <p ng-if="item.Correct.indexOf('Answer_B')>-1">
            {{item.Answer_B}}
        </p>

        <p ng-if="item.Correct.indexOf('Answer_C')>-1">
            {{item.Answer_C}}
        </p>

        <p ng-if="item.Correct.indexOf('Answer_D')>-1">
            {{item.Answer_D}}
        </p>

    </div>
</div>